We finally have an official announcement of an expected release time for the World of Warcraft expansion The Burning Crusade. The European website says that "To allow more time for closed beta testers to provide us with valuable feedback, we will be moving the target launch date of World of Warcraft: The Burning Crusade by a few weeks. This will enable us to take a little extra time to polish the content and ensure that the expansion meets our expectations and those of our players. For more information, click here ."

So the expansion should be released for both European and US customers in January 2007.